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PLC

Difference between PLC & PC

This is a basic question fresh automation personnel, who first introduced to PLC may...
Control Valve

Basics of Electro-hydraulic actuator

Electro-hydrostatic actuator (EHA) replace hydraulic systems with electrical power-only self-contained actuators. EHAs eliminates the...
Control Valve

Types of electrical actuators – Linear & Rotary actuators

What are electrical actuators? The electrical actuator is an electromagnetic device that converts electrical energy...
Electrical

How does Relay work? Types of relays

Relays are an electronic component that can implement switching logic. Relay is a device...
Control System

What is Reliability Centered Maintenance (RCM)?

Reliability Centered Maintenance (RCM) is a process used to determine what must be done...
whatis

What is proactive maintenance?

Proactive maintenance is a preventive maintenance approach that operates to correct the root causes...
Instrumentation

What is Low Water Cutoff pump control? & installation consideration.

Why Low Water Cutoff pump control? It is harmful to boiler when water level in...
Level Measurement

Different types of level gauges:

Slight glass level gauge: A glass of sight or a water gage is a transparent...
Communication

What are the functions of HART communicator? How to use it for Zero trim & D/A trim?

Functions of HART communicator: The main function of the HART 375 Communicator is to communicate...
Instrumentation

What is superheater?

The superheater is one component in the boiler that serves to further heat the...
Control Valve

Solenoid Valve Functional Testing

Here we look at, how functional test is done for solenoid valve using instrument...
Electrical

What is contactor?

The contactor is an electrical component that serves to connect or disconnect AC power....
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